<template>
  <div class="icons">
    <swiper>
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" alt="" />
          </div>
          <p class="icon-desc">{{ item.desc }}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
import axios from "axios";
export default {
  name: "HomeIcon",
  data() {
    return {
      iconList: [],
    };
  },
  methods: {
    loadData() {
      axios
        .get("http://localhost:3000/iconList")
        .then((res) => {
          this.iconList = res.data;
        })
        .catch((err) => {
          console.log(err);
        });
    },
  },
  mounted() {
    this.loadData();
  },
  computed: {
    pages() {
      const pages = [];
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8);
        if (!pages[page]) {
          pages[page] = [];
        }
        pages[page].push(item);
      });
      return pages;
    },
  },
};
</script>

<style lang='stylus' scoped>
.icons >>> .swiper-container {
  height: 0;
  padding-bottom: 50%;
}

icons {
  padding-top: 0.1rem;
}

.icon {
  position: relative;
  overflow: hidden;
  float: left;
  width: 25%;
  padding-bottom: 25%;
  height: 0;
}

.icon-img {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0.44rem;
}

.icon-img-content {
  height: 100%;
}

.icon-desc {
  position: absolute;
  hiegth: 0.44rem;
  left: 0;
  right: 0;
  bottom: 0rem;
  line-height: 0.44rem;
  color: #333;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
</style>